Cycle-frame.



E. Y. WHITE.

CYCLE FRAME.

APPLIOATION rum) AUG.B. 191a.

1,120,1 1 1. Patented Dec. 8, 1914.

5 Hal THE NORRIS PEYERS C0. PHnlCl-IJTHO.. WAS'IINGKW. I). c

EDWARD YOUNG WHITE, OF SAN ANTONIO, TEXAS.

CYCLE-FRAME.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Original application filed July 1, 1908, Serial No. 441,358. Divided andthis application filed August 8, i

To all whom it may concern:

Be it known that I, EDWARD Y. \Vnrrn, a citizen of the United States,residing at San Antonio, Texas, have invented certain new and usefulImprovements in Cycle-Frames, of which the following is a specification.

This invention has been designed with especial reference to use in motorbicycles, but the frame construction here disclosed may be usedadvantageously in velocipcdes or ordinary bicycles.

The object of the invention is to effectively cushion the rear end ofthe vehicle against road shocks, and to cushion the rebound, and toaccomplish this by a simple and mechanical structure which will giveproper lateral bracing.

The present application is a division of my pending application SerialNumber 441,358, for motor vehicles.

One exemplifying embodiment of the invention is shown in theaccompanying drawing, but it must be understood that the invention iscapable of embodiment in many different forms.

Figure 1 is a left side elevation of a vehicle embodying my invention,the particular form of vehicle chosen being a motorbicycle. Fig. 2 is alongitudinal section through the spring tube or head and upper ends ofthe rear fork members. Fig. 3 is an enlarged side elevation of amodified form of seat mountin The rigid main frame A comprises an uppertube 1, rear tube or seat-mast 2, front tube 3, center tube 6, usuallyparallel to the upper tube 1, steering head 4, and rear head or springtube. 5, inclined rearwardly, as shown, and connecting upper tube 1, andrear tube 2. The rigid frame A carries engine E, and also mounted on therigid frame, either as a part of the engine base or otherwise, is adriving center 0, from which power is transmitted to the rear wheel bysprocket and chain, or other suitable driving means.

The saddle is conveniently carried by a saddle post 14, and this is inturn carried at the top of seat-mast 2. Fig. 3 shows an alternativemanner of mounting the saddle, consisting of a fitting 15 in which theseat post 14 is secured by means of a set screw 16.

The rear or wheel frame carrying the driving wheel W comprises rearbraces 20, one on each side of the Wheel, and fork members 21, one oneach side of the wheel.

Serial N0. 783,731.

The braces are pivoted to the rigid frame, and this pivot location may:ulvantageously be about the drivingaxis c. The braces and fork membersare pivotally connected at 22 and the upper ends of the fork members areconnected to a spring controlled slider or piston 57 within the rearhead or spring tube 5. One exemplifying form of such connection is asfollows: The tube 5 is provided in each side with a slot and the forkmembers 21 are connected to the slider through these slots. A suitablespecific form of connection may consist, as shown, of studs or trunnions61 carried by the fork members and entering suitable sockets in theslider, a bolt 62 and nut 63 to pivotally hold the fork ends inconnection with the slider. Preferably, the slider has a tubular form,and between it and the bottom of tube 5 is carried recoil spring 66, andbetween the slider and the top of the tube is carried the main cushionspring 65. Preferably, the top of the tube is closed by removable cap ornut 56, against which the upper end of spring 65 rests. One of theprincipal features of this spring frame construction is the provision ofan inclined rear spring tube or head having in it a spring controlledslide or plunger with which the rear fork members are pivotallyconnected, and, further, the provision of a main spring above the sliderand a recoil spring below the slider to cushion the rebound.

A further important feature consists in a symmetrical, strongly b'aced,rigid frame, comprising front and rear heads upwardly inclined towardeach other, connecting the upper and middle tubes 1 and 6, together withthe front and rear tubes 2 and 3 converging downwardly and securelysupporting the motor or other appurtenances of a cycle approximatelycentrally in the rigid frame.

I claim:

1. In a motorcycle, a main frame including a front head and a rear head,a wheel frame including braces pivoted to the main frame and a forkpivoted to the braces, a sliding member within the rear head, a supporting spring intermediate the sliding member and the frame, and apivotal connection between the fork and the sliding member.

2. In-a motorcycle, a main frame including a front head and a rear head,a Wheel frame including braces pivoted to the main frame and a forkpivoted to the braces, a sliding member within the rear head, a supporting spring intermediate the sliding member and the frame, a reactionspring intermediate the sliding member and the frame, and a pivotalconnection between the fork and the sliding member.

3. In a cycle-frame comprising inclined rear-stays, a seat mast and ahorizontal upper frame-member, an inclined tubular member connecting theseat-mast and the horizontal upper frame member, and provided Withlateral slots, said inclined member extending in a line substantiallyparallel with the rear-stays, spring-mechanism inclosed Within saidinclined member and connected With the upper ends of the rearstaysthrough said slots, and a removable closure for one end of said inclinedmember.

4. In a cycle-frame comprising inclined rear-stays, a seat mast and ahorizontal upper frame-member, an inclined frame member connecting theseat mast and the horizontal upper frame-member, and profloplea or thinpatent may be obtained for five cents each, by addressing theCommissioner of Patents, I

vided With a spring-receiving chamber extending above the horizontalupper framemember, a removable closure .for the forward end of thespring-receiving chamber, a spring in said chamber, and connectionsbetween the spring and the upper ends of the rear-stays, theinclinedframe member being slotted for the passage of said conneetions.

5. In a cycle-frame comprising inclined rear-stays, a seat-mast and ahorizontal upper frame-member, an inclined tubular member connecting theseat-mast and the horizontal upper frame member, said inclined memberextending in a line substantially parallel With the rear stays,springmechanism inclosed Within said inclined member and connected Withthe upper ends of the rear-stays, and a removable inclosure for one endof said inclined member;

EDl/VARD YOUNG l/VHITE.

Witnesses G. W. BRENNER, E. E. MoADoo.

Washington, D. U.

